The goal is to make the frequency not so dominating.
Suppose A has an attack frequency of 100,and B's is 2.
But I don't want to see such a big difference.
I want to reduce the difference,how?
The goal is that A is at most 5 times faster than B,not 100/2=50.
But should make sure A is faster than B.
So I need a mechanism to achieve this.